<template>
  <div class="dashboard-container">
    <div class="app-container">
      <el-card>
        <el-tabs>
          <!-- 放置页签 -->
          <el-tab-pane label="角色管理">
            <!-- 新增角色按钮 -->
            <el-row style="height:60px">
              <el-button
                icon="el-icon-plus"
                size="small"
                type="primary"
                @click="hAdd"
              >新增角色</el-button>
            </el-row>
            <!-- 表格 -->
            <el-table :data="list">
              <el-table-column label="序号" width="120" type="index" />
              <el-table-column label="角色名称" prop="name" width="240" />
              <el-table-column label="描述" prop="description" />
              <el-table-column label="操作">
                <template #default="{row}">
                  <el-button size="small" type="success" @click="hAssignPer(row.id)">分配权限</el-button>
                  <el-button size="small" type="primary" @click="hEdit(row)">编辑</el-button>
                  <el-button size="small" type="danger" @click="hDel(row.id)">删除</el-button>
                </template>
              </el-table-column>
            </el-table>

            <el-row type="flex" justify="center" align="middle" style="height: 60px">
              <!-- 分页组件 -->
              <el-pagination
                :current-page="pageParams.page"
                :page-sizes="[2, 3, 5, 8,12]"
                :page-size="pageParams.pagesize"
                layout=" sizes, prev, pager, next, jumper, total"
                :total="total"
                @size-change="handleSizeChange"
                @current-change="handleCurrentChange"
              />
            </el-row>
          </el-tab-pane>
        </el-tabs>
      </el-card>
      <!-- 新增弹框 -->
<el-dialog 
   :title="isEdit?'编辑角色' : '新增角色'" 
   :visible.sync="showDialog"
   @close="hClose">
  <el-form ref="roleForm" :model="roleForm" :rules="rules" label-width="100px">
    <el-form-item label="角色名称" prop="name">
      <el-input v-model="roleForm.name" />
    </el-form-item>
    <el-form-item label="角色描述" prop="description">
      <el-input v-model="roleForm.description" />
    </el-form-item>
  </el-form>
  <!-- 底部 -->
  <el-row slot="footer" type="flex" justify="center">
    <el-col :span="6">
      <el-button size="small">取消</el-button>
      <el-button size="small" type="primary" @click="hSubmit">确定</el-button>
    </el-col>
  </el-row>
</el-dialog>
<el-dialog :visible.sync="perShowDialog" title="分配权限">
  <assignPer
  v-if="perShowDialog"
  :role-id="roleId"
  @success="perShowDialog=false"
  />
</el-dialog>
    </div>
  </div>
</template>

<script>
import assignPer from './assignPermissions.vue'
import { getRoles, addRoles,editRolse,delRoles  } from "@/api/settings";
export default {
  components:{
    assignPer
  },
  data() {
    return {
      perShowDialog:false,
      roleForm:{
       name:'',
       description:''
      },
      rules:{
        name:[
          {required:true,message:'请输入角色名称',trigger:'blur'}
        ],
        description:[
          {required:true,message:'请输入角色描述',trigger:'blur'}
        ]
      },
      showDialog:false,
      list:[],
      pageParams:{
        page:1,// 页码值
        pagesize:2 // 每页显示的条数
      },
     total: 0,
     isEdit:false,
     roleId:''
    }
  },
  created() {
    this.loadRoles()

  },
  methods:{
    hAssignPer(id){
      this.roleId = id
      this.perShowDialog = true
    },
    hClose(){
      // 重置表单
      // resetFields将表单回到初始的状态(清空表单验证规则)
      this.$refs.roleForm.resetFields()
      // 手动清除
      this.roleForm = {
        name: '',
        description: ''
      }
    },
    hDel(id){
        this.$confirm('您确定删除这个角色吗?').then(async()=>{
          const res =await delRoles(id)
           // 判断页面是否只有一条数据,如果只有一条数据,需要将pageParams.page减一
          if(this.list.lenth === 1) {
            this.pageParams.page--
            if(this.pageParams.page<= 0 ){
              this.pageParams.page=1
            }
          }
          console.log(res,'delRoles')
          if(res.code === 10000) {
            this.loadRoles()
          }
        }).catch(error=>console.log(error))
    },
    hSubmit(){
       this.$refs.roleForm.validate(valid=>{
      if(!valid) return
    this.isEdit ? this.hEdit() : this.doAdd()
    })
    }, 
    hAdd(){
       this.isEdit = false
       this.showDialog = true
    },
    hEdit(row){
     console.log(row,'row')
     this.roleForm = {...row}
     this.isEdit = true
     this.showDialog = true
    },
    async doEdit(){
       try {
        const res = await editRolse(this.roleForm)
        console.log(res,'editRolse');
       } catch (error) {
        console.log(error)
       }
    },
    async doAdd(){
       try {
        const res = await addRoles(this.roleForm)
        console.log(res,'addRoles')
        this.total++
        const maxPage = Math.ceil(this.total/this.pageParams.pagesize)
        // 将请求参数的page改成最大页码值
        this.pageParams.page = maxPage
        // 重新获取数据
        this.loadRoles()
        // 关闭弹层
        this.showDialog=false
       } catch (error) {
        console.log(error)
       }
    },
    async loadRoles(){
      try {
        const res = await getRoles(this.pageParams)
        this.list = res.data.rows
        this.total= res.data.total
      }catch(error){
        this.$message.error('获取数据失败')
      }
    },
     handleSizeChange(val) {
        console.log(`每页 ${val} 条`);
        this.pageParams.page = 1
        this.pageParams.pagesize = val
        this.loadRoles()
      },
      handleCurrentChange(val) {
        console.log(`当前页: ${val}`);
        this.pageParams.page = val
        this.loadRoles()
      }
  }
}
</script>